<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <!-- 引入 bootstrap 样式表 -->
    <link rel="stylesheet" href="./css/bootstrap.min.css" />
    <style>
      body {
        padding-top: 50px;
      }
    </style>
  </head>

  <body>
    <!-- 栅格系统 -->
    <div class="container">
      <div class="d-flex justify-content-between align-items-center">
        <h1>图书管理</h1>
        <button
          class="btn btn-success btn-sm"
          data-bs-toggle="modal"
          data-bs-target="#addModal"
        >
          添加
        </button>
      </div>
      <table
        class="table table-bordered table-striped table-dark table-hover text-center"
      >
        <thead>
          <!-- 表头行 -->
          <tr>
            <th scope="col">Id</th>
            <th scope="col">书名</th>
            <th scope="col">作者</th>
            <th scope="col">出版社</th>
            <th scope="col">操作</th>
          </tr>
        </thead>
        <tbody>
          <!-- 表格中的每一行 -->
          <!-- <tr>
            <th scope="row">xxx</th>
            <td>xxx</td>
            <td>xxx</td>
            <td>xxx</td>
            <td>
              <button type="button" class="btn btn-link btn-sm btn-delete">
                删除
              </button>
              <button type="button" class="btn btn-link btn-sm btn-update">
                编辑
              </button>
            </td>
          </tr> -->
        </tbody>
      </table>
    </div>
    <!-- add Modal -->
    <div class="modal fade" id="addModal">
      <div class="modal-dialog">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title">添加图书</h5>
            <button
              type="button"
              class="btn-close"
              data-bs-dismiss="modal"
              aria-label="Close"
            ></button>
          </div>
          <div class="modal-body">
            <form id="addForm" class="p-3">
              <!-- 书名 -->
              <div class="mb-3">
                <label class="form-label">书名</label>
                <input
                  type="text"
                  name="bookname"
                  class="form-control"
                  placeholder="请输入图书名称"
                  name="bookname"
                />
              </div>
              <!-- 作者 -->
              <div class="mb-3">
                <label class="form-label">作者</label>
                <input
                  type="text"
                  name="author"
                  class="form-control"
                  placeholder="请输入作者名字"
                  name="author"
                />
              </div>
              <!-- 出版社 -->
              <div class="mb-3">
                <label class="form-label">出版社</label>
                <input
                  type="text"
                  name="publisher"
                  class="form-control"
                  placeholder="请输入出版社名称"
                  name="publisher"
                />
              </div>
            </form>
          </div>
          <div class="modal-footer">
            <button
              type="button"
              class="btn btn-secondary"
              data-bs-dismiss="modal"
            >
              取消
            </button>
            <button type="button" class="btn btn-primary" id="addBtn">
              确认
            </button>
          </div>
        </div>
      </div>
    </div>
    <!-- add Modal -->
    <div class="modal fade" id="editModal">
      <div class="modal-dialog">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title">编辑图书</h5>
            <button
              type="button"
              class="btn-close"
              data-bs-dismiss="modal"
              aria-label="Close"
            ></button>
          </div>
          <div class="modal-body">
            <form id="editForm" class="p-3">
              <input type="hidden" name="id" />
              <!-- 书名 -->
              <div class="mb-3">
                <label class="form-label">书名</label>
                <input
                  type="text"
                  name="bookname"
                  class="form-control"
                  placeholder="请输入图书名称"
                  name="bookname"
                />
              </div>
              <!-- 作者 -->
              <div class="mb-3">
                <label class="form-label">作者</label>
                <input
                  type="text"
                  name="author"
                  class="form-control"
                  placeholder="请输入作者名字"
                  name="author"
                />
              </div>
              <!-- 出版社 -->
              <div class="mb-3">
                <label class="form-label">出版社</label>
                <input
                  type="text"
                  name="publisher"
                  class="form-control"
                  placeholder="请输入出版社名称"
                  name="publisher"
                />
              </div>
            </form>
          </div>
          <div class="modal-footer">
            <button
              type="button"
              class="btn btn-secondary"
              data-bs-dismiss="modal"
            >
              取消
            </button>
            <button type="button" class="btn btn-primary" id="editBtn">
              确认
            </button>
          </div>
        </div>
      </div>
    </div>
    <!-- 引入 lib 目录下的 bootstrap 和 axios -->
    <script src="./lib/axios.js"></script>
    <!-- 快速获取表单数据  key=value {key:value}  -->
    <script src="./lib/form-serialize.js"></script>
    <!-- bootstrap的js -->
    <script src="./lib/bootstrap.min.js"></script>
    <script>
      axios.defaults.baseURL = "http://ajax-api.itheima.net"
      // 渲染函数
      async function getBooks() {
        const res = await axios.get("/api/books")
        const booksHtml = res.data.data
          .map((item) => {
            return `
                  <tr>
                    <th scope="row">${item.id}</th>
                    <td>${item.bookname}</td>
                    <td>${item.author}</td>
                    <td>${item.publisher}</td>
                    <td>
                      <button type="button" class="btn btn-link btn-sm btn-delete" data-id=${item.id}>
                        删除
                      </button>
                      <button type="button" class="btn btn-link btn-sm btn-update" data-id=${item.id}>
                        编辑
                      </button>
                    </td>
                  </tr>
          `
          })
          .join("")
        document.querySelector("tbody").innerHTML = booksHtml
      }
      getBooks()

      // 添加图书
      async function addBooks() {
        const addModal = new bootstrap.Modal(
          document.querySelector("#addModal")
        )
        document.querySelector("#addBtn").addEventListener("click", () => {
          // 获取表单数据
          const data = serialize(document.querySelector("#addForm"), {
            hash: true,
          })
          const res = axios.post("/api/books", data).then((res) => {
            if (res.status === 201) {
              addModal.hide()
              document.querySelector("#addForm").reset()
              getBooks()
            }
          })
        })
      }
      addBooks()

      // 删除功能，用到事件委托
      document.querySelector("tbody").addEventListener("click", function (e) {
        // 判断是否选择的是删除按钮
        if (e.target.classList.contains("btn-delete")) {
          // 获取点击删除按钮对应的图书ID
          const id = e.target.dataset.id
          // 向后台发送删除的请求
          axios.delete(`/api/books/${id}`).then((res) => {
            if (res.status === 204) {
              alert("删除成功")
              getBooks()
            }
          })
        }
      })
      // 修改功能
      const editModal = new bootstrap.Modal(
        document.getElementById("editModal")
      )
      document.querySelector("tbody").addEventListener("click", function (e) {
        if (e.target.classList.contains("btn-update")) {
          const id = e.target.dataset.id

          axios.get(`/api/books/${id}`).then((res) => {
            editModal.show()
            const data = res.data.data
            document.querySelector("#editForm [name=bookname]").value =
              data.bookname
            document.querySelector("#editForm [name=author]").value =
              data.author
            document.querySelector("#editForm [name=publisher]").value =
              data.publisher
            document.querySelector("#editForm [name=id]").value = data.id
          })
        }
      })
      document.querySelector("#editBtn").addEventListener("click", () => {
        const data = serialize(document.getElementById("editForm"), {
          hash: true,
        })
        axios.put(`/api/books/${data.id}`, data).then((res) => {
          if (res.status === 200) {
            editModal.hide()
            getBooks()
          }
        })
      })
    </script>
  </body>
</html>
